RTSP – Real Time Streaming Protocol Presented by Manoj Sivakumar
Overview Motivation RTSP - Architecture RTSP – Features Description of Working
Motivation Internet Video On Demand Integration with web architecture Internet VCR Requirements like pause, record etc Integration with web architecture A new application level protocol for media files
RTSP - Architecture Media file download
RTSP – Architecture ..contd Meta Files
RTSP – Architecture ..contd
RTSP - Features “rough” synchronization (fine-grained) virtual presentations = synchronized playback from several servers load balancing using redirection at connect, during stream supports any session description device control camera pan, zoom, tilt caching: similar to HTTP
RTSP - Features Retrieval: first, get presentation description Unicast multicast, client chooses address multicast, server chooses address (NVOD) independent of stream file format
RTSP - Features Methods OPTIONS SETUP ANNOUNCE DESCRIBE PLAY RECORD REDIRECT PAUSE SET PARAMETER TEARDOWN
RTSP - Example
RTSP - Time Normal Play Time (NPT) : seconds, microseconds SMPTE timestamps: seconds, frames Absolute time ( for live events)
References www.cs.columbia.edu/~hgs/teaching/ais/slides/RTSP.pdf